20.19 Main oscillation stabilization characteristics ..................................................................... 217
20.20 Sub-oscillation characteristics ........................................................................................... 217
20.21 Operating voltage range ................................................................................................... 218
20.22 Recommended circuit and layout...................................................................................... 218
20.23 Typical characteristics ....................................................................................................... 219
21 Package information .................................................................................................................. 222
21.1 16 SOPN package information ......................................................................................... 222
21.2 20 TSSOP package information ....................................................................................... 223
21.3 20 SOP package information ............................................................................................ 224
21.4 24 QFN package information ............................................................................................ 225
21.5 28 SOP package information ............................................................................................ 226
21.6 32 LQFP package information .......................................................................................... 227
22 Development tools ..................................................................................................................... 228
22.1 Compiler ............................................................................................................................ 228
22.2 OCD (On-chip debugger) emulator and debugger ........................................................... 228
22.3 Programmers .................................................................................................................... 229
22.3.1 E-PGM+ ................................................................................................................ 229
22.3.2 OCD emulator ...................................................................................................... 229
22.3.3 Gang programmer ................................................................................................ 229
22.4 Flash programming ........................................................................................................... 230
22.4.1 On-board programming ........................................................................................ 230
22.4.2 Circuit design guide .............................................................................................. 231
22.5 On-chip debug system ...................................................................................................... 232
22.5.1 Two-pin external interface .................................................................................... 233
23 Ordering information .................................................................................................................. 237
Appendix ............................................................................................................................................. 239
Instruction table ........................................................................................................................... 239
Revision history ................................................................................................................................... 245